Autosomal Dominant Weill-Marchesani-Like Syndrome in a Chinese Family due to Novel Haplotypic Mutations in LTBP2.
Ophthalmic Res
; 67(1): 340-347, 2024.
Article
en En
| MEDLINE
| ID: mdl-38772353
ABSTRACT
INTRODUCTION:
Weill-Marchesani syndrome (WMS) is a hereditary connective tissue disorder with substantial heterogeneity in clinical features and genetic etiology, so it is essential to define the full mutation spectrum for earlier diagnosis. In this study, we report Weill-Marchesani-like syndrome (WMS-like) change to autosomal dominance inheritance caused by novel haplotypic mutations in latent transforming growth factor beta-binding protein 2 (LTBP2).METHODS:
Twenty-five members from a 4-generation Chinese family were recruited from Guangzhou, of whom nine were diagnosed with WMS-like disease, nine were healthy, and seven were of "uncertain" clinical status because of their young age. All members received detailed physical and ocular examinations. Whole-exome sequencing, Sanger sequencing, and real-time PCR were used to identify and verify the causative mutations in family members.RESULTS:
Genetic sequencing revealed novel haplotypic mutations on the same LTBP2 chromosome associated with WMS-like, c. 2657C>A/p.T886K in exon 16 and deletion of exons 25-36. Real-time PCR and Sanger sequencing verified both mutations in patients with clinically diagnosed WMS-like, and in one "uncertain" child. In these patients, the haplotypic mutations led to ectopia lentis, short stature, and obesity.CONCLUSION:
Our study revealed that WMS-like may be associated with haplotypic LTBP2 mutations with autosomal dominant inheritance.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Linaje
/
Proteínas de Unión a TGF-beta Latente
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Síndrome de Weill-Marchesani
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Mutación
Límite:
Adolescent
/
Adult
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Child
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Child, preschool
/
Female
/
Humans
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Male
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Middle aged
País/Región como asunto:
Asia
Idioma:
En
Revista:
Ophthalmic Res
Año:
2024
Tipo del documento:
Article